Guess My H.P. ? - Yamaha Raptor Forum
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post #1 of 2 (permalink) Old 09-03-2019, 12:29 AM Thread Starter
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Join Date: Aug 2013
Location: Portland, OR
Posts: 1
Guess My H.P. ?

New to Raptors but not to building quads and wanted a guess as to the HP this is making:
01 660

11:1 CP Stock bore
Yosi Exhaust
Pro Designs w/ K&N
Professionally Ported Head (do the pictures look like it's more than mild porting?)

Also wondering if a HC3 might be better suited? Hp increase from the HC2?

It will be ridden in the Oregon Dunes, so drag racing and tree shots at Sandlake and Banshee hill in Winchester will be most of its life.


Tim @ Clutchmotorsports
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post #2 of 2 (permalink) Old 09-06-2019, 11:42 AM
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Join Date: Aug 2019
Posts: 11
41, to the tires
Adult life is offline  

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